Concrete sidewalk-block.



GUNCRETE SDEWALK BLOCK APPLICATION FILED AUG.1, 190'?.

i :2.5jzflat body-portion having ordinary.l conditions the blocks are laid di.

rectly upon the ground which is excavated .to form a seat for the stringers,

an air-space between the ground and body of the blocks as shown. By this arrangement any frost which might accumulate would be free t0 rise out at either edge ofthe stringers,

the resistance o'lfered thereby being so slight as not to cause displacement or serious damage.

I -e aim: t

1. A cement sidewalk block ,comprising a iiat body-portion having parallel laterall oblique-faced ends, matched grooves in the 1,5 oblique faced ends, the grooves being adapted to receive locking-pins, longitudinal stringers depending from the body-portion'of the block at right-angles to said oblique-faced ends',

sions projecting beyond said body-portion,

the opposite ends of the stringers being eutaway for a distance equal to the length of the lend-extensions aforesaid. j

2. A cement sidewalk block comprising a parallel lateral ob- 1 v lique-faced ends, matched grooves in the oblique-faccdA en ds the grooves being adapted lto receive locking-pins, longitudinalstringers depending fromr the body-portion ,of 4the blocks at right-angles to said oblique-faced ends, end-extensions of the stringers projectving be 10nd said body-portion, oblique inf clined faces at the`ends of the extensions and parallel-'with the adj ent oblique end-faces '35 ofthe` block, cutaway-p rtions at the oppol. site ends of `the stringere, the cutaway por- Ytions conforming in shape to the reverse contoury oflv endfextensions aforesaid, whereby matched-joint connection is had, between 40 lstringersi of an adjacent block. f

and Stringer end-exten-4 there being lique-faee( y3. A cement sidewalk block comprising a ilat 'bodyortion having parallel lateral obends, matched groovesin the oblique-faced ends, the grooves being adapted to receive locking-pins, longitudinal stringers depending from the body-portion of the block at right-angles to said oblique-faced ends, end-extensions of the stringers projecting, beyond said body-portion, the end-extensions terminating in oblique faces and having convexed upper surfaces,.a1nl cutaway-portions at the opposite `ends of said stringers, the cutaway portions conforming in shape to the reverse contour of the end-extensions aforesaid, whereby nmtehedjoint connection is had between stringers of an adjacent block.-

4. A cement sidhwalli block comprising a Ailat body-portion having anchor-mds embedded therein and parallel lateral obliquefaced ends, rectangular matched grooves in (.litf'oblique-faeed ends, the grooves being adapted to v receive squared locking-pins, longitudinal stringers.depending from the body-portion of the blocl'i at right-angles to said oblique-faced ends, anchor-rods em bedded in the stringers, and stiinger endextensions projecting beyond said body-portion, theopposite ends of the stringers being cut away for a distance equal to the length ofv the end-extensions aforesaid.

In testimony that l clann tlmforegoing l have hereunto set my hand at Madison 1n the county of Dane and State of Wisconsin .in the l presence of two witnesses.

Y CMAS. DEW).

Witnesses 2 MARK Sin'rn, lr. ALnn'r M. BAoLnY 

